Die and head for folding machines



- E. B. ROBY DIEND HEAD FOR FOLDING MACHINES Jan. 22

or'iginal Filed June 21, 1918 2 Smeets-sheet 1 Jan. 22 1924.

E. B. ROBY DIE AND HEAD FOR FOLDING MACHINES original Filed June 21, 1918 2 sheets-Sheet 2 Patented dan. 22, '1924.

EDWARD B. ROBY, OF TROY, NEV YORK, ASSIGNOR TO STANLEY IVI. STONE, F COI-ICES, NEW YORK;

DIE AND HEAD FOR FOLDING MACHINES.

Application filed .Tune 21, 1918, Serial No. 241,124. Renewed .Tune 29, 1922,. Serial No. 571,793.

To all whom t may concern;

Be it known that I, EDWARD B. ROBY, a citizen of the United States, and resident of Troy, county of Rensselaer and State of New York, have invented certain new and useful Tmprovements in Dies and Heads for Folding Machines, of which the following is a specification.

This invention relates to dies and heads for use in conjunction with folding machines of the general type described in my Letters Patent No. 1,260,060, issued March 19, 1918, employed for turning the edges of collar, cuff or other blanks composed of fabric.

The invention has for its principal objects to provide a device of the character named which comprises adjustable and interchangeable parts embodying efficient means for turning blanks of a variety of shapes and lengths; which is susceptible of eiicient use for alternately turning straightline and compound-curved blanks; which is used in conjunction with a fixed reciprocating head of a folding machine and is of simple and inexpensive construction, embodying means for extreme accuracy of adjustment andr registration of its interchangeable and adjustable parts correlatively with said head.

The above named and other objects are attained by employing an elongated head, a plurality of slidably adjustable parts carried by said head, means for adjusting said parts, a sectional die comprising several sections in` removable connection with said adjustable parts, pin-means connecting said sections to said adjustable parts, and springmeans for detachably connecting said diesec-tions with said parts, all as hereinafter fully described and specifically set forth in the annexed claims.

In the accompanying drawings, forming part of this specification, Figure 1 is a side view of my improved head and die. Fig. 2 is a cross sectional view taken on the line 2-2 of Fig. 1. Fig. 3 is a plan view. Fig. 4 is a plan view of one of the end die-sections, drawn on an enlarged scale. Fig. 5 is a cross section taken on the line 5 5 of Fig. 4. Fig. 6 is a side view of one of the sliding tongues; and Fig. 7 is a side lview of one of the end die-sections. Fig. 8- is a plan view of the die-head and its tongues. Fig. 9 is a longitudinal sectional view taken on the line 9--9 of Fig. 8. Fig. 10 is a plan view showing the tongues and dies in register where a straight-line die is employed. Fig. 11 is a similar view showing a compound-curved die; and Fig. 12 is a plan View of one of the die-sections.

In the example of my invention illustrated by the accompanying drawings A, indicates an elongated die-head which has a deep groove 2, extended throughout its entire length. This groove snugly engages rectangular slidably adjustable tongues B, C and D, adapted for detachable connection with the die-sections E, F and G, hereinafter described. The said tongues are respectively provided, at each end, with a lateral groove 3, for engaging lateral extensions L, of spring-bows H, composed of resilient wire; and each tongue has a vertical opening, or passage-way 4, leading through its respective end'parts. These passage-ways engage pins 5, of the die-sections E, F and Gr, which are respectively provided with a lateral notch 6, adapted to register with the slots 3, of the slidably adjustable tongues, whereby the lateral extensions 7i, of the bows H, may engage said notches and lock the diesections in place.

The die-sections respectively comprise a base-plate J, having a strengthening rib j, and a thin sheet metal die-plate K, having perforations 70, for engaging the pins 5 or their extensions 5f', and each plate J, has integrally formed tubular studs 7, for fixed engagement with the pins 5 or their extensions 5a, by means of lateral fastening pins b. When the die-plates are of irregular, or compound curved formation one or more of the pins 5 embody an integrally formed lateral arm 8 and an auxiliary pin 5, for direct engagement with a stud 7. This arrangement admits of the employment of my invention for turning blanks of various shapes while at the same time using a perfectly straight-line grooved head and slidably adjustable straight-line tongues, said head maintained in fixed engagement with means for giving it reciprocal motion.

The die-plates K, are fastened to their base-plates J, by means of integral stampedup tongues 9, which are bent over on the plates J. Thus making a very secure connection without necessity of employing screws which are generally used as fastening means and which are liable to' become accidentally displaced by vibratory action while kthe device is in operation.

rl'he tongues B and D, are held to the head A, by means of screws L, which pass through slots l, of the head A; and the tongue C, is secured by means of a screw M, which passes through one of the holes m, in said head.

One side face of the head A, is provided with a scale N; and the tongues B, C and D, are respectively provided with a pointer C, for registering with said scale, whereby the required length of die may be indicated.

The end tongues B yand D, may respectively comprise an inverted T-shaped part l0, fixed to the head A, and a rocking part ll, interloclred therewith, one horizontal arm of said T-shaped part normally engaging a slot l2, of the rocking part 11, and the other arm adapted for slidable engagement with a slot 13, of said rocking part ll. These parts are maintained in normalL yparallel alignment, as shown by Fig. 6 of the drawings, by means of the spring-pressed bolt 14 and the normally contracted spiral spring l5, a shoulder 1G, being provided to prevent accidental inward movement of the part ll, while the die .is being ope-rated'.

By employing the construction liereinbefore described it is noteworthy that the dicplates K, are maintained in secure connection with their plates J, by means of the tongues 1.9; and accuracy of adjustment between the pins 5 and the tongues B, `C and D is attained whether the die-sections K, collectively embody either a straight-line or irregular conformation, said pins 5, being susceptible of perfect registration with the passage-ways et, of said tongues B, C and D, whether they Aembody ythe lateral arms 8 and extensions 5a or simply straight pins extended from the studs 7.

When a straight-line die is employed, such as shown by Fig. l() of. the drawings, l use all straight pins 5. Vilhen a compoundcurved ,die plate comprising the several diesections shown by Fig. ll of `the drawings v is used I employ pins having` the offset parts 5, which are in register with and engage `the perforations 7c, of the plates K, the parts 5 registering withy the holes 4 of the slidable tongues B, lC and D. Thus l employ perfectly straight-line tongues B, ,C and D in conjunction with die-plates of a wide variety o f shapes, all parts being interchangeable and susceptible of renewal, in case of breakage, lby reason ofthe fact that the pins 5, in every case register perfectly with lthe passage-ways 4 and the perforations of the die sections.

In the operation and use of the invention the die is pressed downwardly on and held to the blank to be turned, and the edges of said blankv are tnrned overv Ysaid `die by any suitable mea-ns, for instance, the means illustrated in my Letters Patent No. l, 260,- U60. To remove the turned `blanl; the die is contracted in length by swinging the parts ll, downwardly and sliding them inwardly, whereby the blank may be readily removed. i

TVhen it is desired to employ a die of another proportion and contour the tongues B, C and D are slidably adjusted and fixed to desired locations within the head A, the sections E, F and Cr removed and other sections kof required dimensions and contour substituted. To remove or attach the diesections it is simply neces ary to expand the bows H, until their extensions L, are out of engagement with the notches v6, of the pins 5.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is zl. ln a head and die for folding machines, the combination, with a grooved head, and slidably adjustable and detachable tongues within said head, of removable die sections engaging said tongues, and a. bow-spring for detachably fastening said die-sections to said tongues.

2. In a head and die for folding machines, the combination, of a grooved head, and tongues slidably and removably engaging said head, said tongues having vertical passage-ways leading therethrough and slots leading into said passage-ways, and bowsprings having extended parts engaging said slots, with removable die-sections engaging said tongues, said die-sections having notched pins extended Ithrough said passageways and in locking-engagement with said bow-springs.

3. In ahead and die for folding machines, the combination, of a grooved head` and a tongue therein, said tongue having vertical passage-ways leading therethrough and slots leading into said passage-ways, and a bowspring engaging said slots, with a die section comprising a base plate having vertical notched pins` and a die-plate. and means fastening said die-plate to said base plate comprising punched-up tongues formed integral with said die-plate.

4. In a head and die for folding machines, the combination, of a grooifed head and a tongue therein, said tongue having vertical passage-ways leading therethrough and slots leading into said passage-ways, and a bowspring engaging said slots, with a die scction comprising a base plate having studs and vert-ical pins extended therefron'i, said pins each having notch for engaging said bow-spring. v

5. In a head and die for folding machines, the combination, of a grooved head, and a tongue therein, said tongue having vertical passage-ways leading therethrough and slots leading into said passage ways,

and a bow-spring engaging said slots, with a die section comprising a die-plate of compound-curved contour, and a base plate having studs and extended pins, said pins each having a notch7 one of said studs having a laterally extended arm carrying one of said pins. y

6. An interchangeable and removable diesection comprising a ribbed plate having tubular studs, and a die-plate having punched-up tongues engaging said ribbed plate, and notched pins extending from said studs, said die-section adapted for detachable engagement with a sliding tongue 0f a die-head.

7. An interchangeable and removable diesection comprising a ribbed plate having tubular studs, and adie-plate having punched-up tongues in fixed relation with said ribbed plate, and notched pins extending from said studs, one of said pins embodying a downwardly directed part in direct engagement with one of said studs, a lateral arm and an upwardly extended part, said die-section adapted for engagement with a sliding tongue of a die-head.

8. In a head and die, the combination of a grooved head, and a plurality of slidably adjustable tongues, said tongues having vertical passage-ways leading therethrough, and a plurality of die-sections each comprising a perforated die plate and a perforated base platej and a plurality of pins, said pins engaging and registering with said passage-ways and perforations whereby all of said parts are interchangeable7 and means detachably connecting said parts.

9. In a head and die, the combination of a grooved head, and a straight-line slidably adjustable tongue having vertical passageways.y and L die-section comprising` a dieplate having perforations and a base plate having perforations, with pins extending through said passage-ways and perforations whereby they are in register with each other, and means detachably fastening said pins lto said parts whereby all of said parts are interchangeable and removable.

10. In a head. and die for folding machines, the combination of a head and slidably adjustable parts, said parts having vertical passage-ways; with die sections comprising respectively a die-plate having perforations and a base-plate having perforations, and pins extending through said passage-ways and perforations whereby they are in register with each other, Aand means detachably fastening said pins whereby all engaging said pins, and means detachably fastening said pins to said part.

l2. A die-section having openings extended therethrough, and pins engaging said openings7 in combination with a perforated die-plate having its perforations in engagement with said pins, said openings and perforations in register with each other, and means fastening said die-plate and a slidably adjustable part, said pins adapted for removable engagement with a slidab-ly adjustable part of a die head.

13. In a head and die for folding machinesv the combination, with a grooved head and a plurality of slidably adjustable parts within the groove of said head, said parts having openings extended therethrough, of a plurality of perforated diesections, and a plurality of die-plates having perforations registering with said perforations of the die-sections and with said openings, and pins extended through said perforations and openings, and means connecting said parts, said pins in removable engagement with said slidably adjustable parts, whereby the die-sections are interchangeable.

14. In a head and die for folding machines, the combination of an elongated and grooved head, perforated and slidably adjustable parts within the groove of said head. and means for adjusting said parts, with a plurality of perforated die-sections. and a plurality of perforated die-plates, and pin-means extended through said perforated parts, all of said perforations in register with each other. whereby the die-sections are interchangeable.

In testimony that, I claim the foregoing as my invention7 I have signed my name in presence of two witnesses, this 14th day of May7 1918.

EDWARD B. ROBY. Witnesses:

EDWARD C. Doi/LE, JOHN A. CANNON. 

